Calculating price targets from a completed patterns (top or bottom) gives us an idea as to the extend of the move once it is underway. Here is another one of those for educational purposes only.
In this case, the the target is met and exceeded suggesting a potential re-test of the 2020 low(shown on the chart) over the coming weeks.
Chartist/Technical Analyst should now switch to their bar/candle charts for further insights to see if support is found again at that level if and when tested ?
Chart Patterns

Disclaimer